Asking the former Himachal Pradesh Chief Minister to come clean before the public, BJP leader Mukhtar Abbas Naqvi said by "attacking media, he cannot escape from the corruption charges".
"Instead of attacking the messengers, he should worry about the message which is very clear about his involvement in corruption," he said.
Singh had threatened mediapersons in Kullu district last evening when some mediapersons sought his reaction to the fresh charges levelled against him by BJP.
Singh is facing charges of forgery, money-laundering, bribe taking and income tax evasion, with BJP demanding a probe against him.
Naqvi also said that Singh has proved wrong Prime Minister's notion that money does not grow on trees.
"Prime Minister says money does not grow on trees, but Virbhadra has proved that wrong and has proved that money grows on apple trees too," he said.